Summary

Expertise

Project Highlights

Education

Agency

KJ

English:

Upper Intermediate

Kiyoshi J.

vetted by Youteam

Vetted by YouTeam

Japan

UTC +09:00

Asia/Tokyo

English:

Upper Intermediate

Vetted software engineer with 7 years of experience in developing web applications and dApps in the software development field.

Participated in 16+ small to large projects and gained rich experience in most web technologies. Proficient in both front-end side and back-end side and even have rich experience in DevOps. Eager to bring cutting-edge research to the real world and help build a platform for the next generation of cryptocurrency applications.

Want to hire this engineer?

Check if Kiyoshi is available

Expertise

Years of commercial development experience

7 years of experience

Core technologies

Node.js 4 years
React.js 4 years
AWS 2 years
SQL 2 years

Other technologies

Azure
C++
D3.js
Django
Java
JavaScript
JIRA
Kubernetes
PHP
Python
Selenium
TypeScript
WordPress
Apollo
Cosmos OS
Git
Go
Laravel Framework
Nginx
Docker
CircleCI
SQLAlchemy
Ethereum
Solidity
Vue.js
Cypress
Rust
Web3.js
Nest
GraphQL
GatsbyJS

Project Highlights

icon
Software Engineer

Pegasus Metaverse MMORPG

May `21 - Present

3 years

Freelance

Developed Pegasus game token IDO project of Pegasus Metaverse MMORPG

Responsibilities & achievements

• Creation of HowToTube website (Video Platform) using React, Python, Flask, PostgreSQL, SQL Alchemy, and RESTful design as a full-stack web application. • Creating a modern tokenization platform TGT site using Next.js. • Created a SaaS website product using Laravel Spark + Vue.js. • Upgrading DigiCollect site for better performance using Vue.js and Django Framework. • Creating hybrid stable coin UXX site using Vue.js + GraphQL + PostgreSQL. • Passed Arc.dev's Silicon Valley-caliber vetting process and get certified. • NFT (Non-Fungible Token) Marketplace and Mint site Development. • Crypto Coins Exchange Development, ICO & IDO Development with Created Token. • Token development based on Ethereum and Binance (ERC20, ERC721, ERC 1155, BEP20, BEP721, BEP1155).

Django
Flask
PostgreSQL
Python
React.js
SaaS
SQL
Laravel Framework
RESTful API
Ethereum
Vue.js
Cryptocurrency
GraphQL
Next.js
icon
Software Engineer

NDA

Aug `20 - Apr `21

8 months

SimplyPHP Inc.

Creation of Victoriabeckhambeauty e-commerce site using Vue.js, Netlify, Jamstack, and Shopify API in collaboration with Fostr.

Responsibilities & achievements

• Implement innovative ideas and designs to increase the brand's reach and effectiveness, growing revenue by 200% in key channels. • Designed and provided web solutions for a number of small businesses using WordPress, Jamstack CMSs, social network/Web APIs, and e-commerce pay modules. • Perform database defragmentation and use graphQL to optimize SQL queries, improving database performance and loading speed by 70%. • Architected and led a development team building core apps and NLP-based chatbots using React.js, Vue.js, GraphQL, and Node.js. • Revamped UI and interface of an e-commerce site that enhanced performance and improved load time by 45%. • Developed a dynamic and interactive website that ensured high traffic, page views, and user experience, resulting in a 40% increase in sales revenue.

Node.js
React.js
Shopify
SQL
Vue.js
GraphQL
icon
DevOps Engineer

NDA

Feb `19 - Aug `20

1 year

Optergy Sdn Bhd

Developed a React web app (DApp) for blockchain-based track and trade systems.

Responsibilities & achievements

• Introduced an IBFT consensus algorithm and contributed to a big mining pool on the AION network. • Developed new UI for website landing pages using React and designed HTML email templates, increasing email signups by 9% and email CTR rates by 20%. • Collaborated with project managers and other engineering groups to plan and prioritize projects and then break them into scrum epics and stories for my teams (agile). • Lead the development of 6 database projects for one of the company’s largest clients with on-time delivery and 18% under budget completion. • Upgrade the system to automate image optimization, achieving an average load time of 3 seconds or less with a bounce rate of 20-40%. • Successfully transform the team’s waterfall mindset to Agile by developing 20+ effective training materials for teams to understand Agile delivery. • Deliver guidance in all aspects of campaign creation from concept through on-time and on-budget completion of multiphase projects involving budgets up to $75,000.

Agile
React.js
HTML
icon
Full-Stack Developer

NDA

Oct `17 - Feb `19

1 year

CMC Global

Web application for a company that works with insurance companies and radiologists.

Responsibilities & achievements

• Created a Django (Python) web application for a company that works with insurance companies and radiologists. The work included updating Django admin pages and working with bulk imports of CSV data. • Oversaw full lifecycle of software development for 9 projects with 100% on-time delivery while staying 5% under budget. • Deployed full-stack web applications to AWS EC2, and RDS. • Developed a web application for an IT support company that involved building Python back-end and JavaScript front-end. Also built charts to visually display information about client computers. • Designed and developed efficient and maintainable software according to the business objectives and needs of various clients.

AWS
Django
Python
CVS
icon
Frontend Developer | Lead Full-Stack Developer

NDA

Oct `15 - Sep `17

2 years

EGO Creative Innovations

Utilized jQuery, AJAX, and AngularJS to redesign the UI functionality of 5+ multi-threaded apps running on mobiles, tablets, and other touchscreen devices.

Responsibilities & achievements

• Software development using ElectronJS+Node.js+Vue.js for a Marijuana Medicinal company. • Maintained complex technology infrastructure and collaborated with the product team to implement new features and strategically plan for future products. • Conducted unit and load testing for high-profile customer-facing applications, which reduced system failure rate by 70%.

Ajax
AngularJS
jQuery
Node.js
Electron
Vue.js

Education

Higher education in Computer Science

Agency

agency #3557

10-50

GMT+2

Antwerp/Belgium, Hamburg/Germany, Dubai/UAE, Poznan/Poland

Core Expertise

AngularJS
JavaScript
.NET
Node.js
PHP
Python
React.js
TypeScript
Vue.js

Industries

E-Commerce & Retail, Construction & Real estate, Healthcare & Medicine

Want to hire this engineer?

Check if Kiyoshi is available